Good afternoon. when you open the project in the android studio 3.1 there is an error -

Error:Execution failed for task ’:baseGameUtils:processDebugAndroidTestManifest’.
> Manifest merger failed : uses-sdk:minSdkVersion 9 cannot be smaller than version 14 declared in library [com.google.android.gms:play-services:11.6.0] C:\Users\admin\.gradle\caches\transforms-1\files-1.1\play-services-11.6.0.aar\3e9a434c3b464aa1369285843551cbb8\AndroidManifest.xml as the library might be using APIs not available in 9
Suggestion: use a compatible library with a minSdk of at most 9,
or increase this project’s minSdk version to at least 14,
or use tools:overrideLibrary=”com.google.android.gms.play_services” to force usage (may lead to runtime failures)